Here is a tested Arduino project that uses 3 sensor probes as water level indicator with 3 leds and one LCD display + a simple controller that turns on a motor when the water has reached the desired ...

The blog post written by Michael Manoochehri who is a Developer Programs Engineer, outlined their plan to place hundreds of Arduino-based environmental sensors ... to show how using open hardware ...

At points I might do something that might be dangerous because I'm comfortable with some tools or techniques but please always use your common sense and don't try everything you see here.

It features a Broadcom SoC, USB ports, HDMI output, Ethernet, Wi-Fi, and a 40-pin GPIO header for interfacing with sensors ... GPIO Protection: Use resistors, level shifters, and optocouplers to avoid ...

In the blog post, Michael Manoochehri, Developer Programs Engineer, outlines his team’s plan to place hundreds of Arduino-based environmental sensors ... want to show how using open hardware ...